Poster was referring to the Market/Bistro snack boxes which consist entirely of shelf stable items (like chips, crackers, cheese spreads, beef sticks, fruit chews) with nutrition information printed on the items. Is that what you are talking about? If there were items that did not have retail branding on them, it was likely a meal box which is standard for stations that don't have contract catering. The Wiki at the top of this page has stations with meal box service.